The RangeIR is a single element sensor designed for capturing wildlife and birds. The transmitter and receiver are integrated into the same housing making the RangeIR extremely easy to use. It is small and lightweight for easy travel. The RangeIR can be used with or without StopShot. If you do have a StopShot you can use two RangeIR's as a cross beam or in directional trail sensor. Integrated 1/4-20 tripod mount.